Explore topic-wise InterviewSolutions in Current Affairs.

Use Lewis symbols to show electron transfer between the following atoms to form cations and anions: (a) K and S (b) Ca and O (c) Al and N.

In a kingdom there was an excellent archer. The ruler was jealous of his archery skills, so he decided to put his skills to test. The archer was asked to shoot an apple which was placed on his son's head or else his son will be killed. The archer always used his trusted bow.

Case 1: In practice shots he always hits the apple. In this case the archer is:

For reaction, $2A+B\rightleftharpoons 2C,K=x,$ Equilibrium constant for $C\rightleftharpoons A+\frac{1}{2}B$ will be

Which hydride can form a banana bond?

Which of the following metal requires radiation of the lowest wavelength to cause emission of electrons?

An acidic buffer solution can be prepared by mixing the solutions of

During electrolysis of aqueous solution of a salt pH in the space near one of the electrodes is increased. Which of the following salt solution was electrolysed?

Calculate energy of one mole of photons of radiation whose frequency as 5 $\times$ ${10}^{14}$Hz.

What is the difference between p pi p pi and d pi d pi bond

A constant volume thermometer registers a pressure of $1.500\times {10}^4$ Pa at the triple point of water and a pressure of $2.050\times {10}^4$ Pa at the normal boiling point. What is the temperature at the normal boiling point ?

Which of the following acid will release maximum amount of heat when completely neutralized by strong base NaOH?

For the reaction : $aA+bB\to$ Products, the rate law is given by Rate = $k\left[A{]}^m\right[B{]}^n$. On making the concentration of A two-fold and halving that of B, the ratio of the new rate to the earlier rate of the reaction would be:

In wurtz reaction in the preparation of alkanes metallic sodium acts as

The species which by definition has ZERO standard molar enthalpy of formation at 298 K is

Which of the following element does not belong to inner transition elements?

For a real gas (mol. mass = 60 ),if density at critical point is 0.80 $\frac{g}{c{m}^3}$ and its $T_c=\frac{4\times {10}^5}{821}K$.Find the Van der Waals constant “a”(in $atm{L}^{2}mo{l}^{-2}$ ) .

When boron is fused with NaOH, products formed are

In which of the following oxidation states La achieve the noble gas configuration?

Mortar is a mixture of

Etherates are

When radiation of $\lambda =253.7\text{nm}$ strikes the copper plate, the energy required to stop the ejection of electrons from copper plate is $0.24\text{eV}$. Calculate the work function of copper.

For the given reaction :
$R\underset{\left(ii\right)H_{2}O}{\overset{\left(i\right)O_3}{\to }}\text{Only one product}$

Here R can be :

The drain cleaner, Drainex contains small bits of aluminum which react with caustic soda to produce dihydrogen. What volume of dihydrogen at ${20}^{\circ }C$ and one bar will be released when 0.15g of aluminum reacts?

Hydrogen bond is represented by a:

When propionic acid is treated with aqueous sodium bicarbonate, $C{O}_2$ is liberated. The C of $C{O}_2$ comes from:

Product [A] in the reaction:

If HCl bond length is 0.127 nm and Cl - Cl bond length is 0.176nm. H - H bond length is

The molecule having pyramidal shape is –

The oxidation state of $N$ in $N{H}_{4}N{O}_3$ is

Name the following rearrangement:

The reaction X $\to$ products follows first order kinetics. In 40 minutes, the concentration of X changes from 0.1 M to 0.025 M. The rate of reaction when concentration of X is 0.01 M is:

Heavy water is

Select the species which is NOT aromatic:

The mass of a neutral carbon atom, a specimen of the most common isotope, in ground state is

The number of $\text{P – O – P}$ bonds in $P_4{O}_6$:

Unit of $K_p$ for $PC{l}_3+C{l}_2\rightleftharpoons PC{l}_5$ is:

A match box exhibits

[MP PET 1993, 95]

Give the chemical composition of detergents.